Diamondbacks agree to long-term extension with impressive pitcher

Martínez, 23, has a limited major league track record but has impressed in that time. He had a rough debut in 2023, allowing 14 earned runs in a small sample of 10 innings. But he firmly established himself last year. He tossed 72 2/3 innings over 64 appearances for the D-backs, allowing just 2.48 earned runs per nine innings. His 11.7% walk rate was definitely on the high side but he struck out 29.5% of batters faced and got grounders on 58.9% of balls in play.

He accomplished all that with an impressive arsenal, turning his Statcast page into a sea of red. His four-seam fastball and sinker both averaged over 100 mph with Martínez also mixing in a splitter and a slider. He earned seven holds and eight saves last year, cementing himself as a key leverage arm for the Snakes.

Given that eye-popping performance, it’s understandable that the Snakes would look to lock him up. It’s also easy to see why Martínez might prefer to lock up some life-changing money now. He had just converted from the outfield to the mound in 2018 prior to being signed as an amateur out of the Dominican Republic. He got a $50K bonus, relatively modest compared to some of the multimillion-dollar bonuses high-profile prospects get. He has struggled with control problems throughout his minor league career and also had Tommy John surgery in 2021.

While Martínez is surely confident in his obvious talents, his trajectory has been more rocky than many other young players. That perhaps made him less likely to bet on himself than a player who already had millions in the bank and a smooth ride to the majors.

The deal is roughly in line with previous pacts for pre-arbitration relievers, as shown on MLBTR’s Contract Tracker. Emmanuel Clase got $20M over five years from the Guardians going into the 2022 season. Clase then had between one and two years of service time, as Martínez does now. In both cases, the player locked up guaranteed money for their pre-arb and arb years, while giving up two free agent seasons via options. The Clase deal is tops for a reliever in this service bracket with Martínez coming in just below him.

Clase is an apt comparison for Martínez and a good illustration of what the Diamondbacks are hoping for. Clase was clearly a talented pitcher but had some uncertainty after missing the 2020 season due to a PED suspension. He pitched his first full season in 2021 and posted a 1.29 ERA over 71 appearances. The Guardians banked on Clase repeating that kind of performance going forward, a bet that has paid off. Clase has emerged as one of the best closers in baseball with a 1.72 ERA over the first three years of that deal.

The bar doesn’t need to be that high for Martínez. Even by the end of the deal, his salary stays fairly modest. Decent setup pitchers like Paul Sewald, Yimi García and Tommy Kahnle signed deals with salaries in the $7M-$8M range this winter. That means Martínez will be a bargain even if he’s producing in the realm of those guys. But clearly, the ceiling is quite high and the Diamondbacks are hoping Martínez is a key part of the bullpen for years to come.

What remains to be seen is how Martínez will be utilized in the short term. Manager Torey Lovullo said this week, in video relayed by Alex Weiner of Arizona Sports, that he would likely not name a strict closer. He has two key lefties in A.J. Puk and Joe Mantiply, as well as righties Martínez and Kevin Ginkel. Based on Lovullo’s comments, he seems likely to put his pitchers in optimal platoon settings, at least until a more clear hierarchy emerges.